The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2003
Filed:
Jun. 15, 2000
Applicant:
Inventor:
Linchong Zhao, Nanshan, CN;
Assignee:
Emerson Network Power Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/613 ;
U.S. Cl.
CPC ...
G05F 1/613 ;
Abstract
The invention relates to a soft switching topological circuit. A zero voltage turn-on is realized when the main switch is turned on, by utilizing the resonance of the resonant inductor and the resonant capacitor after the auxiliary switch is turned on. Moreover, during the turn-off of the main switch, the resonant inductor withstands a voltage drop, which causes the energy-feed device corresponding to the auxiliary switch to feed no energy out when the auxiliary switch is turned on, thereby realizing zero current turn-on of the auxiliary switch, and increasing the circuit running efficiency.